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David

Occurrence in El Dorado county in California, United States with commodity Manganese
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Land status
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10030033
MRDS ID M007944
Record type Site
Current site name David
Related records 10162809

Geographic coordinates

Geographic coordinates: -120.85547, 38.90545 (WGS84)
Relative position JUST W OF GEORGETOWN

Site location context

Political divisions (FIPS codes)

El Dorado(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Georgetown(quadrangle 1:24,000 scale)

Placerville(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

South Fork American(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California El Dorado

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 012N 010E 10 California

Comments on the location information

  • LOCATED IN SW 1/4 NW 1/4 SECTION 10

Commodities

Commodity Importance
Manganese Critical Tertiary

Materials information

Materials Type of material
Psilomelane Ore
Pyrolusite Ore

Analytical data

Result AVERAGE 5 TO 10 PERCENT MANGANESE

Nearby scientific data

(1) -120.85547, 38.90545
ListMap

Economic information

Ore body information

  • Strike N 10 E
    Dip 60 E
    Thickness 0.61M
    Width 4.57M

Comments on the geologic information

  • GEOL.DESC: PSILOMELANE AND PYROLUSITE MIXED WITH LIMONITE IN STRINGERS PENETRATING CHERT (RECRYSTALLIZED TO VERY FINE GRAINED CHERT TO SOME EXTENT. STRINGERS ARE USUALLY NOT OVER 1/2 TO 1 IN THICK AND MORE OR LESS RUN PARALLEL TO BEDDING. CHERT APPEARS TO BE SURROUNDED BY SERICITE SCHIST.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Land status

Ownership category National Forest

Comments on the workings information

  • OPEN CUTS.

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 52, NO. 4, P. 575, PL. 10

  • Deposit

    D.O.M. BULL. 152 1950 PP. 51 - 52

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 Gere, W. U.S. Geological Survey
Updater 01-APR-1977 Von Dohlen, E.; Albers, J. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.